Hydrocarbon-burner.



E. P. HARMS. HYDROGARBON BURNER. APPLICATION FILED nun. z, 1912.

Patented Dec. 9, 1913.

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EDWIN P. m0! DETROIT, MICHIQAN.

HYDBOCARZBON-BU'BNEB.

Specification of Letters Patent.

PatentedDec. 9, 1913.

Application mediarch 2, 1912. serial No. 681,142.

To all whom it may concern:

Be it known that I, EDWIN P. Hume, a citizen of the United States, residing at Detroit, in the county of Wayne, State' of Michigan, have invented certain new and useful Improvements in H drocarbon- Burners; and I do declare the ollowing to bea full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanyin drawings, and to the characters of re erence marked thereon, which form. a part of this specification.

This invention relates to hydrocarbon burners or to burners adapted to consume fluid fuel, and consists in the construction and arrangement of arts hereinafter more fully set forth and c aimed.

The object of the invention is to produce a burner of the character described, wherein provision is made for supplying to the fuel in the burner trough at the time of lighting the burner, a relatively large volume of air, thereby accelerating the process of vaporization, by supplying suflicient air at the start to support a rapid combustion of the fuel, producing a flame which will quickly heat the burner and base to a temperature that will insure a rapid vaporization of the fuel.

The invention contemplates such an ad justment of the parts as will enable the air sup ly to be reduced or regulated, after the urner shall have become heated to such a temperature as to readily vaporize the fuel, to supply thereafter such quantity of air as will properly support combustion.

The above object is obtained by the structure illustrated in the accompanying drawings in which.

Figure 1 is an elevation of a burner embodying my invention. Fig. 2' is a vertical transverse section therethrough. Fig. 3 is a plan view of the burner base. Fig. 4 is a fragmentary view in elevation showing a portion of the base and of the burner wall, and illustrating the position of parts when aflording the supply of a relatively largevolume of air to the fuel in the trough of the burner.- Fig. 5 is a similar view showing the parts adjusted to reduce the volume of air, as under normal conditions, after the burner and base have been heated to such a temperature as to effect a rapid vaporization of the fuel. Fig. 6 is a similar view to Fig. 5, showing the burner wall lifted from the base and illustrating the registering apertures or notches in said parts through which the air which passes to the fuel trough in the base is admitted.

Referring to the drawings, by the characters of reference marked thereon, 1 designates the base of the burner, which is preferably cast in a circular form," and is provided with a fuel trough 2, V-shaped in cross section. Communicating with the fuel trough of the base, is a fuel supply pipe 3. Formed in the edges of the base, are notches 4, which extend downwardly to a point above the fuel level, and afford openings through which air is admitted to the fuel in the trough of the burner.

The burner walls 5, which may be of any approved construction, rise from the edges of the trough of the base, said walls being concentric with the circular fuel trough and are supported thereon to form between them the usual flame space of the burner. The lower edge of the burner wall and the upper edge of the fuel trough of the base are arranged to fit one within the other, and the lower edge of the burner wall is provided with apertures or notches 6. which are adapted, by a rotation of the burner upon the base, to be brought into registering relation with the notches 4 in the edge of the base, as shown in Fig. 4. In this position, the registering notches form relatively large openings. through, which a comparatively large volume of air will be admitted to the fuel trough. This arrangement is of material importance, as it enables, at the time of lighting the burner, a relatively large volume of air to pass into the burner trough, thereby accelerating the combustion of the liquid fuel, and quickly heating the base and burner to a temperature sufficiently high to cause the fuel to vaporize.

In hydrocarbon burners of this type as ordinarily constructed, a lapse of considerable time is necessary after the lighting of the burner, before the fuel will vaporize in the burner trough and the burner will reach its highest state of efiiciency. This has been due to the fact, that, because of the construction of the burner troughs, a limited amount of air only could be admitted thereto, resulting in a comparatively slow combustion of the fuel, and a 'consequent absence of sufficient heat to quickly heat the burner and base to the point of vaporization. It has been found that where a sufiicient volume of air has been admitted tothe fuel trough to assist combustion at the start, said volume would be excessive after the burner became heated, resulting in the consumption of the fuel gas, in proximity to the point of communication of the fuel pipe with the base, and preventing an equal distribution of the flame throughout the entire flame space of the burner. To provide, therefore, for the relatively large volume of air which is required when the burner is lighted, and the reduced volume which is required later on to properly support combustion and effect an equal distribution of the flame throughout the burner space, adjustment of the airintake openings, through which air to support combustion is supplied, is necessary. This adjustment I accomplish by forming said intake openings partly in the lower edge of the burner wall, and partly in the upper edge of the burner base, and arranging for a rotation of the burner upon the base, so as to cause said notches to register when a large supply of air is required, and to carry them out of registering alinement to reduce the size of the air-intake openings,

when a smaller amount of airis desired. This latter condition is illustrated in Fig. 5, wherein the burner wall is shown rotated or adjusted, so as to cause the notches 6 therein to become closed by theportions 7 of the edge of the base intermediate the notches 4 therein, whereby the area of the air-intake openings may be reduced as desired.

It will be understood that by adjusting the notches 6 in the' bottom of the burner wall with respect to the notches 4 in the edge of the base, any degree of variation of the air-intake openings may be effected to afford such a supply of air as may be required under varying conditions. It will be noted that the simple manner of adjusting the air-intake openings by rotating one part with respect to the other, is accomplished without changing the function of the burner in any sense, or in any manner interfering with its perfect operation. By simply turning the burner wall when the burner is lighted, so as to afford the full area of the alr-intake openings, and later on rotating the burner so as to reduce the size of said openings,'the burner may be readily adjusted to accomplish the desired results without in the least interfering with its function.

Haiving thus fully set forth my invention,

what '1 claim as new and desire to secure by Letters Patent is v j 1. In a hydrocarbon burner, a burner base having a fuel trough therein, a burner wall, the said burner. wall and the said trough movable with respect to each other, apertures formed in the said trough and in the said burner wall and adapted to register, thereby forming air openings in the said trough, the area of which may be varied.

2. In a hydrocarbon burner, a burner base having a fuel trough therein, a burner wall rotatably seated on the said trough, the said trough and the said burner wall having apertures, the area of the said apertures being varied by rotary movement of the said burner wall with respect to the said trough.

3. In a hydrocarbon burner, a base having a fuel trough therein, the upper edge of the said trough having a plurality of notches, a burner wall mounted on the said trough, the said burner wall having notches in its lower edge adapted to cooperate with the notches in the edge of the trough, the area of the said openings being variable by a rotary movement of the sald wall with respect to the said trough.

4. A hydrocarbon burner comprising a.

base having a fuel trough therein, the edges of the said fuel trough having spaced notches, a burner wall rotatably mounted on the said trough, the said wall normally closing a portion of the notches in the said trough, the lower edge ofthe said burner wall having notches adapted by rotary movement of said wall with respect to the said trough to register with the notches in the trough, the portions of the margin of the trough between the notches being adapted to close the notches in the lower edge of the burner wall when said wall is rotated to carry the notches thereinv out of alinement with thenotches in the base.

In testimony whereof, I sign this specifition in the presence of two witnesses.

EDWIN P. HARMS.

Witnesses:

H. R. MILLER, J. Orro BAENZIGER. 

